IBM 9228 Service Guide - Page 75

Removing the rear fan, the system board see Removing an adapter

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4. Push the drive cage outward, and press in on the drive-cage release lever; then, rotate the drive cage completely into the chassis. 5. Press down on the power-supply release latch and rotate the power supply into the chassis. Return the power supply handle to the closed position. 6. Replace the side cover (see "Installing the side cover" on page 32). 7. Reconnect the external cables and power cords; then, turn on the attached devices and the computer. Removing the rear fan Attention: v Replace a failed fan within 48 hours. v To ensure proper cooling and airflow, do not operate the computer for more than 30 minutes with the side cover removed. To remove the rear fan, complete the following steps. Grommets Rear fan Figure 33. Removing the rear system fan 1. Read the safety information that begins on page vii and "Installation guidelines" on page 29. 2. Turn off the computer and all attached devices; then, disconnect all external cables and power cords. 3. Remove the side cover (see "Removing the side cover" on page 31). 4. Remove any adapters that impede access to the fan and the fan connector on the system board (see "Removing an adapter" on page 36). 5. Disconnect the rear fan cable from the system board, and note the location of the connector (see "System board internal connectors" on page 9). 6. Grasp the rear fan and pull firmly, extending the rubber extensions (grommets) that secure the fan to the chassis. Pull the grommets through the holes in the fan or chassis and remove them or use side cutters to cut the grommets. Chapter 4. Removing and replacing computer components 57

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4.
Push the drive cage outward, and press in on the drive-cage release lever;
then, rotate the drive cage completely into the chassis.
5.
Press down on the power-supply release latch and rotate the power supply into
the chassis. Return the power supply handle to the closed position.
6.
Replace the side cover (see “Installing the side cover” on page 32).
7.
Reconnect the external cables and power cords; then, turn on the attached
devices and the computer.
Removing the rear fan
Attention:
v
Replace a failed fan within 48 hours.
v
To ensure proper cooling and airflow, do not operate the computer for more than
30 minutes with the side cover removed.
To remove the rear fan, complete the following steps.
Grommets
Rear fan
1.
Read the safety information that begins on page vii and “Installation guidelines”
on page 29.
2.
Turn off the computer and all attached devices; then, disconnect all external
cables and power cords.
3.
Remove the side cover (see “Removing the side cover” on page 31).
4.
Remove any adapters that impede access to the fan and the fan connector on
the system board (see “Removing an adapter” on page 36).
5.
Disconnect the rear fan cable from the system board, and note the location of
the connector (see “System board internal connectors” on page 9).
6.
Grasp the rear fan and pull firmly, extending the rubber extensions (grommets)
that secure the fan to the chassis. Pull the grommets through the holes in the
fan or chassis and remove them or use side cutters to cut the grommets.
Figure 33. Removing the rear system fan
Chapter 4. Removing and replacing computer components
57